9.14 In the setting of Exercise 9.11, how many engineers should be sampled if it is desired...

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9.14 In the setting of Exercise 9.11, how many engineers should be sampled if it is desired to estimate the mean number of hours worked to within 0.5 hour with confidence coefficient 0.95?

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Probability And Statistics For Engineers

ISBN: 9781133006909

5th Edition

Authors: Richard L Scheaffer, Madhuri Mulekar, James T McClave, Cecie Starr

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